Action-Reaction: Answering Questions, Solving Problems.

[jdawe]

Looking at the Earth's moon again. To test whether or not it is
spinning we must be located in its dead centre.

Absolute - Relative

Centre - Perimeter

Clear - Blurred

Impartial - Biased

Only in the centre of an object can we truly be impartial observers
who can make a clear absolute statement.

Obviously getting to the dead centre of the moon is going to be a
little difficult so what we can do instead is draw a straight line
from the centre of the moon.

Centre - Perimeter

Straight - Curved

Connected - Disconnected

Making a connection with the centre via a straight line is the next
best thing to being in the dead centre.

Read - Write

With a connected straight line to the centre we can read the data of
its curving exterior.

It's no different than with a clock. Time spins around and if we want
to 'read' the time we must make a connection with the centre of the
spinning clock. Otherwise the spinning will just be a blur.

So, looking back at the moon. We are located here on the Earth so to
read the data of the moon we must connect our centre to the centre of
the moon. We draw a straight line from the centre of the moon to the
centre of our location which is Earth.

Answer - Question

Then we can read and answer questions relating (relative) to the moon
even though we are not located there. As the same face of the moon
points to the earth along that straight line and never deviates we can
'safely' answer questions of whether the moon spins or not with a No,
it does not spin.

Safe - Dangerous

Straight - Curved

Solution - Problem

Impartial - Biased

Always draw a straight line from the centre of your location to the
centre of what needs to be read for an impartial clear result.

Now, if you you are located on a planet in another Star system and
want to test whether the moon of the Earth in the Solar System spins
or not you would need to draw a straight line from the centre of your
own planet to the centre of your own star. Then you would draw a
straight line from your star to the Sun. Then you draw a straight line
from the Sun to the Earth. Before finally drawing a straight line from
the Earth to its moon.

That way you can connect to other star systems from your own star
system nd accurately read its data and answer question you may have
relating (relative) to anything in that particular system.

[Sam Wormley]

On 5/19/13 8:05 PM, jdawe wrote:
> Looking at the Earth's moon again. To test whether or not it is
> spinning we must be located in its dead centre.

One can test weather the earth is spinning with a pendulum on the
surface not near the equator. One can measure the moon's rotation
by monitoring it orbital motion.

Lunar angular velocity = 2.662 X 10^-6 Rad/s, which comes out to
be 2360000 seconds (27.32 days) for a 2π (360°) rotation.

[jdawe]

On May 20, 11:21 am, Sam Wormley <sworml...@gmail.com> wrote:
> On 5/19/13 8:05 PM, jdawe wrote:
>
> > Looking at the Earth's moon again.  To test whether or not it is
> > spinning we must be located in its dead centre.
>
>    One can test weather the earth is spinning with a pendulum on the
>    surface not near the equator.

Is the pendulum floating or is it grounded to the Earth?

Grounded - Airborne

Connected - Disconnected

Read - Write

Straight - Curved

Centre - perimeter

If it is floating and airborne it cannot be used to read measurements
of the Earth. It must be grounded with a connection to the Earth's
centre.

> One can measure the moon's rotation
>    by monitoring it orbital motion.
>
>    Lunar angular velocity = 2.662 X 10^-6 Rad/s, which comes out to
>    be 2360000 seconds (27.32 days) for a 2π (360°) rotation.

You don't measure motion relative to motion.

Absolute - Relative

Static - Motion

Linear - Curved

All curved motion is measured relative to the absolute static linear
centre.

Sure, the moon may sit in a disc that rotates around the Earth. But
the question of whether the moon itself spins or not can be safely
answered with a clear absolute no.

Dead - Alive

No spin means we can also safely conclude the moon is dead.

[Sam Wormley]

On 5/19/13 8:34 PM, jdawe wrote:
> On May 20, 11:21 am, Sam Wormley <sworml...@gmail.com> wrote:
>> On 5/19/13 8:05 PM, jdawe wrote:
>>
>>> Looking at the Earth's moon again. To test whether or not it is
>>> spinning we must be located in its dead centre.
>>

>> One can test whether the earth is spinning with a pendulum on the

>> surface not near the equator.
>
> Is the pendulum floating or is it grounded to the Earth?
>

Since you are have trouble with basic concepts, affix the pendulum
or laser gyro to the surface of the earth.

[Virgil]

In article
<b67cd277-5d2f-4ff8...@oy9g2000pbb.googlegroups.com>,

jdawe <mrj...@gmail.com> wrote:

> Then we can read and answer questions relating (relative) to the moon
> even though we are not located there. As the same face of the moon
> points to the earth along that straight line and never deviates we can
> 'safely' answer questions of whether the moon spins or not with a No,
> it does not spin.

Relative to any coordinate system fixed to any body in the solar system
other than the moon, the moon rotates.
--

[jdawe]

But if you connect it to the ground of the Earth you have a direct
connection to the centre on the Earth. You made the comment you don't
need to be in contact with the centre of the Earth to measure its
spin.

See if you can measure the Earths rotation without linear grounding.
Show me a flying pendulum or airborne laser gyro that measures the
Earths rotation.

[Sam Wormley]

On 5/19/13 9:19 PM, jdawe wrote:
> But if you connect it to the ground of the Earth you have a direct
> connection to the centre on the Earth. You made the comment you don't
> need to be in contact with the centre of the Earth to measure its
> spin.

As I pointed out, you have a difficult time with simple concepts.
> http://en.wikipedia.org/wiki/Foucault_pendulum

>
> See if you can measure the Earths rotation without linear grounding.

Measurement of the Rotation of the Earth
> http://en.wikipedia.org/wiki/Earth's_rotation#Measurement

[jdawe]

If you stand a pendulum vertical up on the ground of the Earth it has
a direct vertical linear grounding to the Earth's centre.

Lay the pendulum on its side horizontally and see if it still works.

[Sam Wormley]

On 5/19/13 9:19 PM, jdawe wrote:

> See if you can measure the Earths rotation without linear grounding.

Fifth graders can sight a prominent star with two sticks and time
the 360° rotation of the earth on the following night.

[jdawe]

A Foucault pendulum uses no linear line connected to the Earth? Look
at the picture of the Foucault pendulum again and look for where the
linear line is on it.

[jdawe]

They must stick those sticks in the ground. Alternatively they must
hold those sticks while standing vertically on the Earth.

[Sam Wormley]

On 5/19/13 9:26 PM, jdawe wrote:
> If you stand a pendulum vertical up on the ground of the Earth it has
> a direct vertical linear grounding to the Earth's centre.
>
> Lay the pendulum on its side horizontally and see if it still works.

I try, I say I try not to be that stoooopid. A pendulum, by
definition, hangs freely.

[Sam Wormley]

Fifth graders are pretty good at the essentials of the experiment.

[jdawe]

Can those grade 5 students uses those sticks to time the rotation of
the earth from an airplane?

[jdawe]

If it hangs freely feel free to cut the line coming down from above

[Sam Wormley]

On 5/19/13 9:32 PM, jdawe wrote:
> A Foucault pendulum uses no linear line connected to the Earth? Look
> at the picture of the Foucault pendulum again and look for where the
> linear line is on it.
>

You are going to have to build one and get back to us on what you
found. Don't let the wind spoil your measurements. :-o

[jdawe]

Ok well take your pendulum that hangs freely, on an airplane trip and
measure Earths rotation from there. The grade 5 students can come
along and measure the Earths rotation from the airplane with their
sticks too. Report back to us with your results.